Separated self-adaptive wind driven generator

Abstract

The invention belongs to the field of wind power generation, and particularly relates to a separated self-adaptive wind driven generator which comprises a base, a resistance rotating shaft and a lift rotating shaft are sequentially sleeved with a fixed shaft, an upper bevel gear and a lower bevel gear which are meshed with each other are arranged at the top end of the lift rotating shaft, and a sliding block is arranged on the outer side of the lower bevel gear. A protection device is arranged on the lifting force rotating shaft, a plurality of speed reduction blocks are arranged on the protection plate in a coupling mode, and the other ends of the speed reduction blocks are connected with the protection sleeve through speed reduction springs; a sliding groove is formed in the resistance rotating shaft, the sliding block moves in the sliding groove, and a limiting groove is formed in the sliding groove; the bottom of the lower bevel gear is connected with the supporting ring through a limiting spring, and a speed reduction groove is formed in the inner wall of the resistance rotating shaft and corresponds to the speed reduction block in position. According to the wind driven generator, the lifting force type fan blades and the resistance type fan blades can be automatically separated or combined according to the rotating speed condition, the hysteresis quality of the resistance type fan blades during high-speed operation is avoided, and the situation that the rotating speed of the fan blades is too high, and equipment damage is caused can be prevented.

Description

Technical Field

[0001] The invention belongs to the field of wind power generation, and in particular relates to a separate self-adaptive wind generator. Background Art

[0002] A wind turbine is a device that converts wind energy into electrical energy. Its working principle is based on the fact that wind energy drives the rotor blades to rotate, and then the mechanical energy is converted into electrical energy through the generator. Generally speaking, a wind turbine mainly consists of a rotor (blades), a nacelle, a tower, a generator and a control system. Its working principle includes the following steps: (1) Wind energy capture: The rotor blades rotate under the action of wind, converting wind energy into mechanical energy; (2) Mechanical energy transmission: The rotation of the rotor blades passes through the main shaft to the gearbox, and the gearbox converts the low-speed rotation into high-speed rotation to meet the needs of the generator; (3) Electrical energy generation: The high-speed rotating shaft drives the generator to convert mechanical energy into electrical energy; Electrical energy transmission: The generated electrical energy is boosted by a transformer and then transmitted to the power grid or directly supplied to users. The entire device is monitored and adjusted by the control system to monitor parameters such as wind speed, wind direction, and generator speed, and adjust the blade angle and generator load according to these parameters to optimize power generation efficiency and ensure safe operation of the equipment. When the wind speed is too high, the control system will activate the brake device to prevent the blades from rotating too fast and causing equipment damage. The whole process involves the coordinated work of multiple key components and systems, ultimately achieving efficient and clean energy conversion. Wind turbines play an important role in the field of renewable energy, helping to reduce dependence on fossil fuels and reduce greenhouse gas emissions.

[0003] Traditional wind turbines are horizontal axis wind turbines (HAWT), while the emerging vertical axis wind turbines (VAWT) in recent years are wind power generation equipment that uses a vertical axis to rotate. Compared with traditional horizontal axis wind turbines (HAWT), VAWT has unique design and application advantages, such as strong adaptability and can work normally in any wind direction, simple and flexible installation and maintenance, and a wider range of applications.

[0004] For most of the current vertical axis wind turbines, a combination of lift-type fans (Dubois type) and resistance-type fans (Savigny type) is used to increase the overall output power of the fans. However, both types of fan blades have their own advantages and disadvantages. The characteristic of the resistance-type fan is that the wind speed requirement is relatively low when starting, but at the same time the upper limit of the speed is low, and it is difficult to exceed the wind speed; the characteristic of the lift-type fan blade is that under weak wind conditions, the instability of the fan blade angle of attack makes it difficult to start, and after starting, the fan blade with reference to the wing configuration can continuously increase the speed, far exceeding the wind speed, and the output power is high. After the two are combined in series, the problem of the lift type being difficult to start is solved, but in the process of continuous acceleration, the resistance type shows lag when running at high speed, which has a negative impact on the power output of the combined fan. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a separate adaptive wind turbine generator, which can automatically separate or combine lift-type blades and resistance-type blades according to the rotational speed, thereby avoiding the lag of the resistance-type blades when running at high speed and ensuring that the blades run within the allowable range of the generator speed, thereby preventing the blades from rotating too fast and causing damage to the equipment.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: a separate adaptive wind turbine, comprising a base, a fixed shaft is arranged above the base, a resistance generator and a lift generator are arranged inside the fixed shaft, a resistance rotating shaft and a lift rotating shaft are sequentially mounted inside the fixed shaft, the resistance rotating shaft and the lift rotating shaft are respectively connected to the resistance generator and the lift generator at one end close to the base, a resistance fan blade is connected to the resistance rotating shaft, and a lift fan blade is connected to the lift rotating shaft.

[0007] An upper bevel gear and a lower bevel gear meshing with each other are arranged at the top end of the lift shaft, a sliding block is arranged on the outer side of the lower bevel gear, a protective device is arranged on the lift shaft between the upper and lower ends of the lift blades, the protective device is mounted on the outer side of the lift shaft through a protective sleeve, a protective plate is arranged around the outer side of the side wall of the protective sleeve, a plurality of deceleration blocks are axially connected to the protective plate, and the other end of the deceleration block is connected to the protective sleeve through a deceleration spring.

[0008] A slide groove consistent with the length direction of the resistance shaft is arranged on the inner wall at the top end, and the slider of the lower bevel gear moves in the slide groove, and a limit groove extending in the rotation direction of the resistance shaft is arranged on the slide groove; a support ring extending radially toward the center is arranged inside the resistance shaft at the lower part of the lower bevel gear, and the bottom of the lower bevel gear is connected to the support ring through a limit spring, and a deceleration groove recessed into the resistance shaft is arranged on the inner wall of the resistance shaft, and the deceleration groove corresponds to the position of the deceleration block in the protective device on the lift shaft.

[0009] When stationary, the limit spring is in a natural state, the upper bevel gear and the lower bevel gear are tightly meshed together, the slider of the lower bevel gear is located in the slide groove, and the lift shaft and the resistance shaft are connected together.

[0010] When the speed of the lift shaft reaches the upper limit of the speed of the resistance blade, the limit spring is compressed, the slider outside the lower bevel gear moves into the limit groove, the upper bevel gear and the lower bevel gear separate, and the lift shaft and the resistance shaft disengage and rotate separately.

[0011] When the blade speed of the lift shaft is lower than the preset speed threshold upper limit, the deceleration spring in the protection device is in a natural state and the deceleration block is located inside the protection plate; when the blade speed of the lift shaft is greater than or equal to the preset speed threshold upper limit, the deceleration spring in the protection device is in a stretched state, the deceleration block extends from the protection plate and is stuck in the deceleration groove of the resistance shaft.

[0012] Preferably, the lift shaft is sleeved inside the resistance shaft, and the resistance shaft is sleeved inside the fixed shaft.

[0013] Preferably, the upper bevel gear and the lower bevel gear are both bevel gears.

[0014] Preferably, eight speed reduction blocks are evenly spaced apart on the protection device.

[0015] Preferably, eight deceleration grooves are evenly spaced on the inner wall of the resistance shaft and matched one by one with the deceleration blocks.

[0016] Preferably, the size of the limiting groove is consistent with the size of the slider.

[0017] Preferably, the lower bevel gear is connected to the lift shaft via a ball bearing, and the protective sleeve is connected to the lift shaft via a ball bearing.

[0018] Preferably, four sliding blocks are arranged on the outer side of the lower bevel gear, and four sliding grooves corresponding to the sliding blocks are arranged at corresponding positions of the resistance shaft.

[0019] Preferably, there is a distance between the side edge of the protection plate of the protection device and the inner wall of the resistance shaft.

[0020] The beneficial effects of the present invention are as follows: according to the rotation speed relationship between the lift blades and the resistance blades, the generator adaptively realizes the separation or connection of the lift shaft and the resistance shaft, making full use of the advantages of the resistance blades being easy to start and the lift blades having a fast rotation speed, avoiding the resistance blades from rotating lagging at high speeds and affecting the power generation efficiency; according to the relationship between the lift blades and the upper limit of the preset rotation speed threshold, when the lift blades rotate too fast, the protective device connects the lift shaft and the resistance shaft together, and uses the hysteresis of the resistance blades to reduce the speed of the lift blades, avoiding the blades from rotating too fast and causing damage to the equipment. Therefore, the wind turbine can flexibly and adaptively determine the separation and connection relationship between the lift shaft and the resistance shaft according to the blade rotation speed relationship, so as to achieve the purpose of speeding up and speeding down, which can not only improve the power generation efficiency, but also ensure the safe operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3It is a structural schematic diagram of the resistance shaft in the present invention; Figure 4 It is a structural schematic diagram of the lift shaft in the present invention; Figure 5 It is a schematic diagram of the internal structure of the resistance shaft in the present invention; Figure 6 It is a schematic diagram of the structure of the protection device in the present invention; Figure 7 It is a working state diagram of the protection device in the present invention; Figure 8 It is a structural schematic diagram of the chute in the present invention; Fig. 9 It is a structural schematic diagram of the lower helical gear in the present invention; Fig.10 It is a structural schematic diagram of the lower bevel gear embedded in the limiting groove in the present invention.

[0022] Reference numerals: 1. Base; 2. Fixed shaft; 3. Resistance generator; 4. Lift generator; 5. Resistance shaft; 6. Lift shaft; 7. Resistance blades; 8. Lift blades; 9. Upper bevel gear; 10. Lower bevel gear; 11. Slider; 12. Protective device; 121. Protective cover; 122. Protective plate; 123. Speed ​​reduction block; 124. Speed ​​reduction spring; 13. Slide groove; 14. Limiting groove; 15. Support ring; 16. Speed ​​reduction groove; 17. Limiting spring; 18. Ball bearing; 19. Fixed column. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the structure of the present invention.

[0024] like Figure 1 and Figure 2 As shown, a separated adaptive wind turbine comprises a base 1, a fixed shaft 2 is arranged above the base 1, a resistance generator 3 and a lift generator 4 are arranged inside the fixed shaft 2, a resistance rotating shaft 5 and a lift rotating shaft 6 are sequentially mounted inside the fixed shaft 2, the resistance rotating shaft 5 and the lift rotating shaft 6 are respectively connected to the resistance generator 3 and the lift generator 4 at one end close to the base 1, a resistance fan blade 7 is connected to the resistance rotating shaft 5, and a lift fan blade 8 is connected to the lift rotating shaft 6.

[0025] The lift shaft 6 is sleeved inside the resistance shaft 5 , and the resistance shaft 5 is sleeved inside the fixed shaft 2 ; and the resistance blades 7 are located inside the lift blades 8 .

[0026] An upper bevel gear 9 and a lower bevel gear 10 meshing with each other are arranged at the top end of the lift shaft 6, a slider 11 is arranged on the outer side of the lower bevel gear 10, a protective device 12 is arranged on the lift shaft 6 between the upper and lower ends of the lift blades 8, the protective device 12 is mounted on the outer side of the lift shaft 6 through a protective sleeve 121, a protective plate 122 is arranged around the outer side of the side wall of the protective sleeve 121, a plurality of deceleration blocks 123 are axially connected to the protective plate 122, and the other end of the deceleration block 123 is connected to the protective sleeve 121 through a deceleration spring 124.

[0027] Among them, the upper bevel gear 9 and the lower bevel gear 10 are both bevel gears, and the bevel gears include bevels and right-angled surfaces. In the present invention, the separation or connection of the upper bevel gear 9 and the lower bevel gear 10 is achieved by whether the connecting surface of the two gears is a right-angled surface or a beveled surface. When stationary and when the rotation speed of the resistance blade 7 is greater than or equal to the rotation speed of the lift blade 8, the bevels and right-angled surfaces of the two gears are tightly fitted together, and the right-angled surfaces are mainly subjected to force; and when the rotation speed of the lift blade 8 is about to exceed that of the resistance blade 7, the force on the bevel surface gradually increases, and the bevel area fitted between the upper and lower bevel gears 10 gradually decreases, forcing the lower bevel gear 10 to gradually move downward until the two are completely separated.

[0028] like Figure 3 and Figure 4 , Figure 5 As shown, a slide groove 13 consistent with the length direction of the resistance shaft 5 is provided on the inner wall at the top end of the resistance shaft 5, and the slider 11 of the lower bevel gear 10 moves in the slide groove 13, and a limit groove 14 extending in the rotation direction of the resistance shaft 5 is provided on the slide groove 13; a support ring 15 extending radially toward the center is provided inside the resistance shaft 5 at the lower part of the lower bevel gear 10, and the bottom of the lower bevel gear 10 is connected to the support ring 15 through a limit spring 17, and a deceleration groove 16 recessed into the resistance shaft is provided on the inner wall of the resistance shaft 5, and the deceleration groove 16 corresponds to the position of the deceleration block 123 in the protective device 12 on the lift shaft 6.

[0029] When the speed is higher than the upper limit of the resistance shaft 5, in order to ensure that the resistance shaft 5 and the lift shaft 6 can always remain in a separated state after they are separated; a slide groove 13 is provided on the inner wall of the resistance shaft 5, and a limit groove 14 is provided in the slide groove 13. When the outer side of the lower bevel gear 10 continues to move downward, the slider 11 also continues to move downward in the slide groove 13 until it reaches the position of the limit groove 14. Under the action of the rotational torque, the slider 11 enters the limit groove 14 and is locked at this position, so that the resistance shaft 5 and the lift shaft 6 remain in a separated state, avoiding the hysteresis of the resistance shaft 5 from affecting the speed of the lift shaft 6, so as to achieve the purpose of improving the power generation efficiency. At the same time, in order to ensure that the resistance shaft 5 and the lift shaft 6 can be connected together when the speed is lower than the upper limit of the resistance shaft 5, a limit spring 17 is arranged under the lower bevel gear 10, one end of the limit spring 17 is connected to the lower bevel gear 10, and the other end is connected to the support ring 15 on the inner wall of the resistance shaft 5. When the speed of the lift shaft 6 is lower than the speed of the resistance shaft 5, the opposite force causes the slider 11 to disengage from the slide groove 13, and under the elastic action of the limit spring 17, the lower bevel gear 10 gradually moves up, the upper bevel gear 9 and the lower bevel gear 10 gradually mesh together again, and the resistance shaft 5 drives the lift shaft 6 to rotate together.

[0030] Obviously, if Figure 8-10 As shown, the size of the limiting groove 14 is consistent with the size of the slider 11 , four sliders 11 are arranged on the outer side of the lower bevel gear 10 , and four slide grooves 13 corresponding to the sliders 11 are arranged at corresponding positions of the resistance shaft 5 .

[0031] Regarding the state of the limit spring 17 and the deceleration spring 124: when the fan is stationary, the limit spring 17 is in a natural state, the upper bevel gear 9 and the lower bevel gear 10 are tightly meshed together, the slider 11 of the lower bevel gear 10 is located in the slide groove 13, and the lift shaft 6 and the resistance shaft 5 are connected together. When the speed of the lift shaft 6 reaches the upper limit of the speed of the resistance blade 7, the limit spring 17 is compressed, the slider 11 outside the lower bevel gear 10 moves into the limit groove 14, the upper bevel gear 9 and the lower bevel gear 10 are separated, and the lift shaft 6 and the resistance shaft 5 are separated and rotated separately. When the blade speed of the lift shaft 6 is lower than the preset speed threshold upper limit, the deceleration spring 124 in the protection device 12 is in a natural state, and the deceleration block 123 is located in the protection plate 122; when the blade speed of the lift shaft 6 is greater than or equal to the preset speed threshold upper limit, the deceleration spring 124 in the protection device 12 is in a stretched state, and the deceleration block 123 extends from the protection plate 122 and is stuck in the deceleration groove 16 of the resistance shaft 5.

[0032] Among them, Figure 6 and Figure 7 As shown, eight deceleration blocks 123 are evenly spaced apart on the protection device 12 , and eight deceleration grooves 16 are evenly spaced apart on the inner wall of the resistance shaft 5 , and are matched with the deceleration blocks 123 one by one.

[0033] During the operation of the wind turbine, too fast a speed can also cause damage to the equipment, so a protective device 12 is also required. When the speed of the lift blade 8 does not exceed the upper limit of the preset speed threshold, the centrifugal force on the deceleration block 123 of the protective device 12 cannot make it overcome the elastic force of the deceleration spring 124 to extend out of the range of the protective plate 122, so it will not pop out, and the lift shaft 6 and the resistance shaft 5 rotate separately; and when the speed of the lift blade 8 exceeds the upper limit of the preset speed threshold, the centrifugal force on the deceleration block 123 of the protective device 12 is greater than the elastic force of the deceleration spring 124 connected thereto, and the deceleration block 123 extends radially toward the direction of the resistance shaft 5 from the protective plate 122 and enters the deceleration groove 16 set on the inner wall of the resistance shaft 5, then the lift shaft 6 and the resistance shaft 5 are connected together again and rotate together, and the hysteresis performance of the resistance shaft 5 effectively reduces the speed of the lift shaft 6, thereby achieving the purpose of speed reduction, preventing excessive speed and damage to the equipment.

[0034] Therefore, when the rotation speed of the lift blades 8 is lower than the rotation speed of the resistance blades 7 and the rotation speed of the lift blades 8 is higher than the upper limit of the preset rotation speed threshold, the lift shaft 6 and the resistance shaft 5 are connected together and rotate together. The differences are as follows: (1) when the speed of the lift blade 8 is less than the speed of the resistance blade 7, the lift shaft 6 and the resistance shaft 5 are connected by the meshing of the upper bevel gear 9 and the lower bevel gear 10 and the locking of the lower bevel gear 10 with the slide groove 13. At this time, the speed of the resistance shaft 5 is faster, which drives the lift shaft 6 to rotate. The speed of the lift shaft 6 is getting faster and faster, realizing the acceleration function until it exceeds the maximum speed of the resistance shaft 5 and the two are separated; (2) when the speed of the lift blade 8 is greater than the preset speed threshold upper limit, the lift shaft 6 and the resistance shaft 5 are connected by the locking of the deceleration block 123 of the protective device 12 on the lift shaft 6 and the deceleration groove 16 on the resistance shaft 5. At this time, since the speed of the resistance shaft 5 is slower, it hinders the rotation of the lift shaft 6. The speed of the lift shaft 6 is getting slower and slower, realizing the deceleration function until the speed of the lift shaft 6 is lower than the preset speed threshold upper limit and the lift shaft 6 can rotate safely.

[0035] The operation process of the present invention is as follows: (1) at startup, the speed of the resistance blade 7 is faster and plays a leading role, and the right-angled surfaces of the upper bevel gear 9 and the lower bevel gear 10 are tightly fitted to push the lift blade 8 to rotate; (2) when the speeds of the resistance blade 7 and the lift blade 8 increase to the maximum speed of the resistance blade 7, the resistance blade 7 can no longer accelerate, but the lift blade 8 continues to accelerate. At this time, the upper bevel gear 9 and the lower bevel gear 10 gradually move relative to each other along the meshing bevel surface, and the meshing bevel surface area of ​​the two gradually decreases. The lower bevel gear 10 is gradually pressed downward, and the limit spring 17 connected to the lower bevel gear 10 is also The upper bevel gear 9 and the lower bevel gear 10 are completely disengaged, and the slider 11 on the outer side of the lower bevel gear 10 is inserted into the limit groove 14. At this time, the resistance blade 7 and the lift blade 8 are completely disengaged, and the two no longer rotate together; (3) When the speed of the lift blade 8 is maintained between the maximum speed of the resistance blade 7 and the upper limit of the preset speed threshold, the resistance shaft 5 and the lift shaft 6 are always disengaged and rotate separately. Since the resistance shaft 5 and the lift shaft 6 are respectively connected to the resistance generator 3 and the lift generator 4, both can generate electricity; (4) When the speed of the lift blade 8 is less than 0.01mm, the resistance shaft 5 and the lift shaft 6 are disengaged from each other. When the speed of the resistance fan blade 7 is about 200, the upper bevel gear 9 connected to the lift shaft 6 and the lower bevel gear 10 connected to the resistance shaft 5 through the slider 11 and the slide groove 13 move relative to each other, so that the slider 11 of the lower bevel gear 10 slips out of the limit groove 14 on the resistance shaft and enters the slide groove 13. Under the action of the limit spring 17, it moves upward, and the upper bevel gear 9 and the lower bevel gear 10 are meshed through the bevel surface. As the speed gradually decreases, the meshing bevel surface area gradually increases until it is meshed through the right-angle surface. At this time, the lift shaft 6 is completely driven to rotate by the resistance shaft 5; (5) When the lift fan 6 rotates, the upper bevel gear 9 and the lower bevel gear 10 are meshed through the bevel surface. When the rotation speed of blade 8 is higher than the preset rotation speed threshold upper limit, it needs to be slowed down. At this time, the upper bevel gear 9 and the lower bevel gear 10 are completely disengaged, but the deceleration block 123 of the protection device 12 on the lift shaft 6 stretches the deceleration spring 124 under the action of centrifugal force, so that the deceleration block 123 enters the deceleration groove 16 on the inner wall of the resistance shaft 5, and the lift shaft 6 and the resistance shaft 5 rotate together again. The rotation speed of the resistance shaft 5 is slower, so the lift shaft 6 is slowed down to ensure the safe operation of the equipment. In this process, the lift shaft 6 and the resistance shaft 5 are connected to their respective generators to generate electricity, and the power generation efficiency is highest at this time.

[0036] In summary, through the engagement and disengagement of the upper bevel gear 9 and the lower bevel gear 10, and the engagement and separation of the deceleration block 123 and the deceleration groove 16 in the protection device 12, the coordinated rotation relationship between the lift shaft 6 and the resistance shaft 5 can be adjusted according to the speed, so as to achieve the purpose of increasing the fan power and achieving an overload protection effect.

[0037] In the present invention, the principle of relative movement between the upper bevel gear 9 and the lower bevel gear 10 is as follows: the upper bevel gear 9 is connected to the lift shaft 6, and the lift blades 8 drive the lift shaft 6 to move, thereby driving the upper bevel gear 9 to move; the lower bevel gear 10 is connected to the slide groove 13 on the inner wall of the resistance shaft 5 through the slider 11, and the resistance blades 7 drive the resistance shaft 5 to move, thereby driving the lower bevel gear 10 to move; therefore, the meshing surface between the upper bevel gear 9 and the lower bevel gear 10 is mainly affected by the rotation speed of the lift blades 8 and the resistance blades 7.

[0038] like Figure 4 As shown, the principle of the slider 11 of the lower bevel gear 10 entering and exiting the slide groove 13 on the inner wall of the resistance shaft 5 is as follows: as the lower bevel gear 10 is gradually pressed downward, the limit spring 17 is gradually compressed and moves downward to the vertical position of the limit groove 14. Since the inner wall of the lower bevel gear 10 is connected to the lift shaft 6 through the ball bearing 18, the lift shaft 6 will give the lower bevel gear 10 a smaller counterclockwise torque, thereby pushing the slider 11 of the lower bevel gear 10 to move horizontally and embed into the limit groove 14, thereby achieving the purpose of limiting the rebound of the limit spring 17. When the speed of the lift blade drops below that of the resistance blade, the speed of the upper bevel gear 9 is slower, and the speed of the lift shaft 6 slows down. Therefore, for the lower bevel gear 10, its outer wall is connected to the resistance shaft 5 through the slider 11 and the slide groove 13, and the inner wall is connected to the lift shaft 6 through the ball bearing 18, that is, the speed of its outer wall should be greater than the speed of the inner wall. The outer wall of the lower bevel gear 10 is subjected to a clockwise torque, so that the slider 11 disengages from the slide groove 13, and the meshing surfaces of the upper bevel gear 9 and the lower bevel gear 10 are on the inclined surface, and the meshing inclined surface area gradually increases with the decrease in the speed. At the same time, under the action of the rebound force of the limit spring 17, the lower bevel gear 10 moves upward in the slide groove 13 until the lower bevel gear 10 and the upper bevel gear 9 are meshed at a right angle and rotate together.

[0039] The ball bearing 18 connection between the lower bevel gear 10 and the lift shaft 6 is to reduce energy loss. When the resistance blade 7 and the lift blade 8 rotate separately, the outer wall of the lower bevel gear 10 connected to the resistance shaft 5 has a lower rotation speed than the inner wall of the lower gear connected to the lift shaft 6. However, the inner wall of the lower bevel gear 10 and the lift shaft 6 are connected by the ball bearing 18, and the resistance brought by the outer wall is greatly reduced. Then the resistance blade 7 basically does not affect the rotation speed of the lift blade 8. The two rotate separately and generate electricity separately. In order to minimize energy loss, the lower bevel gear 10 and the lift shaft 6 should be connected by a ball bearing 18 with as little damping as possible.

[0040] like Figure 6 and Figure 7As shown, eight deceleration blocks 123 are evenly arranged inside the protection device 12 of the present invention, one end of the deceleration block 123 is fixed to the protection plate 122 through the fixing column 19, and it can rotate around the fixing column 19, that is, the deceleration block 123 and the protection plate 122 are axially connected; the other end of the deceleration block 123 is connected to the protection sleeve 121 of the protection device 12 through the deceleration spring 124. Obviously, there is a distance between the protection plate 122 and the inner wall of the resistance shaft 5, and when the speed of the lift blade 8 is less than the preset speed threshold upper limit, there is no contact between the protection device 12 and the resistance shaft 5. Regarding the deceleration spring 124, when the lift shaft 6 is stationary, the deceleration spring 124 is in a natural state, and when the lift shaft 6 rotates, the deceleration block 123 is acted upon by the centrifugal force and rotates toward the inner wall of the resistance shaft 5. At the same time, the deceleration block 123 is also constrained by the elastic force of the deceleration spring 124. The directions of the two forces are opposite. When the speed of the lift blade 8 is faster, the centrifugal force exerted on the deceleration block 123 is greater, and the distance between the deceleration block 123 and the deceleration groove 16 is closer, until the speed of the lift blade 8 reaches the preset speed threshold upper limit, the deceleration spring 124 is stretched, the deceleration block 123 is embedded in the deceleration groove 16, and is driven to rotate by the resistance shaft 5, thereby reducing the speed of the lift shaft 6 and acting as a brake.

[0041] Since the protection device 12 is connected to the lift shaft 6 via the protection sleeve 121 through the ball bearing 18 , in order to achieve a better deceleration effect, a ball bearing 18 with greater damping is used to achieve the connection between the protection device 12 and the lift shaft 6 .

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A separate adaptive wind turbine generator, comprising a base, a fixed shaft is arranged above the base, a resistance generator and a lift generator are arranged in the fixed shaft, and the characteristics are: The fixed shaft is sequentially provided with a resistance shaft and a lift shaft, and one end of the resistance shaft and the lift shaft close to the base is connected to the resistance generator and the lift generator respectively, the resistance shaft is connected with a resistance blade, and the lift shaft is connected with a lift blade; An upper bevel gear and a lower bevel gear meshing with each other are arranged at the top of the lift shaft, a slider is arranged on the outer side of the lower bevel gear, a protective device is arranged on the lift shaft, the protective device is sleeved on the outer side of the lift shaft through a protective sleeve, a protective plate is arranged around the outer side of the side wall of the protective sleeve, a plurality of deceleration blocks are axially arranged on the protective plate, and the other end of the deceleration block is connected to the protective sleeve through a deceleration spring; A slide groove is arranged on the inner wall at the top end of the resistance shaft in the same direction as the length of the resistance shaft, the slider of the lower bevel gear moves in the slide groove, and a limit groove extending in the rotation direction of the resistance shaft is arranged on the slide groove; a support ring extending radially toward the center is arranged inside the resistance shaft at the lower part of the lower bevel gear, the bottom of the lower bevel gear is connected to the support ring through a limit spring, and a deceleration groove is arranged on the inner wall of the resistance shaft and is recessed into the resistance shaft, and the deceleration groove corresponds to the position of the deceleration block in the protective device on the lift shaft; When stationary, the limit spring is in a natural state, the upper bevel gear and the lower bevel gear are tightly meshed together, the slider of the lower bevel gear is located in the slide groove, and the lift shaft and the resistance shaft are connected together; When the speed of the lift shaft reaches the upper limit of the speed of the resistance blade, the limit spring is compressed, the slider outside the lower bevel gear moves into the limit groove, the upper bevel gear and the lower bevel gear separate, and the lift shaft and the resistance shaft separate and rotate separately; When the blade speed of the lift shaft is lower than the preset speed threshold upper limit, the deceleration spring in the protection device is in a natural state and the deceleration block is located inside the protection plate; when the blade speed of the lift shaft is greater than or equal to the preset speed threshold upper limit, the deceleration spring in the protection device is in a stretched state, the deceleration block extends from the protection plate and is stuck in the deceleration groove of the resistance shaft.

2. A separate adaptive wind turbine according to claim 1, characterized in that: The lift shaft is sleeved inside the resistance shaft, and the resistance shaft is sleeved inside the fixed shaft.

3. A separate adaptive wind turbine according to claim 1, characterized in that: The upper helical gear and the lower gear are both helical gears.

4. A separate adaptive wind turbine according to claim 1, characterized in that: The protection device is evenly spaced with 8 speed reduction blocks.

5. A separate adaptive wind turbine according to claim 4, characterized in that: The inner wall of the resistance shaft is evenly spaced with 8 deceleration grooves, which are matched with the deceleration blocks one by one.

6. A separate adaptive wind turbine according to claim 1, characterized in that: The size of the limiting groove is consistent with the size of the sliding block.

7. A separate adaptive wind turbine according to claim 1, characterized in that: The lower bevel gear is connected to the lift shaft via a ball bearing, and the protective sleeve of the protective device is connected to the lift shaft via a ball bearing.

8. The separate adaptive wind turbine according to claim 1, characterized in that: Four sliding blocks are arranged on the outer side of the lower bevel gear, and four sliding grooves corresponding to the sliding blocks are arranged at corresponding positions of the resistance shaft.

9. The separate adaptive wind turbine according to claim 1, characterized in that: There is a distance between the side edge of the protection plate of the protection device and the inner wall of the resistance shaft.

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